Cosmetology Theory Chapter #12

Question 1

Change in the form of a substance that does cause a chemical reaction is a(a) ______ change.

Accepted Answer

Physical

Question 2

When acids and alkalis are mixed together in equal proportions, they ________ each other.

Accepted Answer

Neutralize

Question 3

A common volatile organic compound used is hair spray is ______.

Accepted Answer

Ethyl alcohol

Question 4

A chemical combination of matter in definite (fixed) proportions is a ______.

Accepted Answer

Pure substance

Question 5

Ions with a positive electrical charge are called a(n) ______.

Accepted Answer

Cation

Question 6

The state of matter that has definite volume, but takes the shape of its container is a ______.

Accepted Answer

Liquid

Question 7

The study of substances that lack the element carbon, but may contain the element hydrogen is:

Accepted Answer

Inorganic chemistry

Question 8

An atom or molecule that carries an electrical charge is a(n) ______.

Accepted Answer

Ion

Question 9

A substance, usually liquid, that dissolves another substance to form a solution is a(n) _____.

Accepted Answer

Solvent

Question 10

Chemically combining two or more atoms produces a ______.

Accepted Answer

Molecule

Question 11

The branch of science that applies to substances that contain carbon is called ______ chemistry

Accepted Answer

Organic

Question 12

The simplest form of chemical matter that cannot be broken down without the loss of identity:

Accepted Answer

Element

Question 13

Because it has the ability to dissolve more substances than any other solvent, water is called:

Accepted Answer

The universal solvent

Question 14

Everything known to exist in the universe is either made of matter or is ______.

Accepted Answer

Energy

Question 15

The basic unit of matter with a nucleus surrounded by electrons orbiting the nucleus is a(n):

Accepted Answer

Atom

Question 16

A chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized:

Accepted Answer

Redox

Question 17

Chemical reactions that are characterized by giving off heat are ______.

Accepted Answer

Exothermic

Question 18

When a substance gains oxygen, the substance is:

Accepted Answer

Oxidized

Question 19

A chemical reaction in which oxygen is subtracted from or hydrogen is added to a substance is:

Accepted Answer

A reduction reaction

Question 20

If a product has a pH of 8.9, it is considered:

Accepted Answer

Alkaline

Question 21

Mutually soluble liquids that can be mixed together to form clear solutions are ______.

Accepted Answer

Miscible

Question 22

The rapid oxidation of a substance, accompanied by the production of heat and light is:

Accepted Answer

Combustion

Question 23

Substances that allow oil and water to mix, or emulsify, are ______.

Accepted Answer

Surfactants

Question 24

There are ____ naturally occurring elements, each with its own physical and chemical properties

Accepted Answer

98

Question 25

The chemical combination of two or more atoms of different elements produces a(n) ______.

Accepted Answer

Compound

Question 26

Glitter polish is an unstable physical mixture of undissolved particles in a liquid, which is:

Accepted Answer

A suspension

Question 27

Which substance is an example of an elemental molecule?

Accepted Answer

Ozone

Question 28

Air contains many substances, including nitrogen, carbon dioxide, and water vapor and is a:

Accepted Answer

Physical mixture

Question 29

The oxidation of haircolor is an example of a ________.

Accepted Answer

Chemical change

Question 30

A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound is:

Accepted Answer

A reducing agent

Question 31

What is made when salt is dissolved in water?

Accepted Answer

Solution

Question 32

_____ organic compounds are substances containing carbon and evaporate very quickly and easily.

Accepted Answer

Volatile

Question 33

Being "Capable of combining with or attracting water (water-loving) is defined as ______.

Accepted Answer

Hydrophilic

Question 34

A solution with a pH value of seven indicates a(n) ______ solution.

Accepted Answer

Neutral

Question 35

Having an affinity or attraction to fat and oils (oil-loving) is defined as ______.

Accepted Answer

Lipophilic

Question 36

What type of change occurs when ice melts and becomes water?

Accepted Answer

Physical

Question 37

An unstable physical mixture of two or more immiscible substances is a(n) ______.

Accepted Answer

Emulsion

Question 38

People began making soaps about 4,500 years ago by boiling animal fat with:

Accepted Answer

Wood ashes

Question 39

Only products that contain _______ can have a pH.

Accepted Answer

Hydrogen

Question 40

A stable physical mixture of two or more substances in a solvent is a(n) ______.

Accepted Answer

Solution

Cosmetology Theory Chapter #12

Questions 40

Cosmetology Theory Chapter #12

Questions 40